Medallion assembly secured to a tire sidewall

ABSTRACT

A medallion assembly for a pneumatic tire, in accordance with the present invention, includes a protruding portion, a fastener, and a medallion. The protruding portion is integrally formed with a sidewall of the tire and extends away from the sidewall of the tire. The protruding portion has an annular tapered outer surface. The fastener has an annular tapered inner surface and an annular outer surface. The annular tapered inner surface engages the annular tapered outer surface of the protruding portion. The medallion has an annular inner surface for engaging the annular outer surface of the fastener such that the medallion is secured to the fastener and both the medallion and the fastener are secured to the protruding portion of the sidewall of the tire.

FIELD OF INVENTION

The present invention relates to securing a medallion to a tire and, more particularly, to securing a medallion to a sidewall of a tire.

BACKGROUND OF THE INVENTION

Conventional pneumatic tires have sidewalls or portions thereof of different color than the remainder of the tire. Typically, tires have a black tread and sidewall but the provision of raised, generally white, letters or colored areas in the tire sidewall has been in great demand by the public and is being provided by virtually all tire manufacturers. These decorative sidewalls are usually built integrally with the pneumatic tires by well known procedures. However, such decorative tires are not only costly to build and involve relatively expensive manufacturing procedures, but also may make use of pigments that are not always fully compatible with the remaining portions of the tire sidewall.

While efforts have conventionally been made to provide removable types of sidewall trim members that may be affixed in, or to, a pneumatic tire sidewall, it has been difficult to provide pneumatic tire trim members that may be positively secured in place on, or in combination with, a pneumatic tire sidewall so as to remain in good operative engagement therewith over a long service life.

Conventional efforts to resolve these problems have included the use of removable sidewall or trim members wherein a radially inner edge or flange section is physically interlocked between the tire bead and the wheel flange when the tire is deflated and being positioned on the wheel. Such efforts have complicated mounting and dismounting of the tire to the wheel. Other conventional efforts have included securing the tire sidewall to the tire and wheel assembly by means of a wheel cover or hub cap that attaches and engages a radial inner portion of a sidewall to secure the wheel cover in place.

Another conventional effort utilizes an annular flexible tire trim member that engages a sidewall of a tire via coupling means having continuous annular grooves and lips on sidewall members and the tire sidewall. These circumferentially continuous coupling means may also utilize male or female coupling on the tire sidewall to match a complementary female or male coupling on an inner face of the sidewall. However, this continuous type of coupling or retention, once disengagement is initiated at any one point, rapidly continues until the entire member disengages. In addition, individualized or personalized styling treatments, as may be desired by the end user, are generally not feasible.

Still another conventional removable sidewall trim member utilizes a detachable tire sidewall addition member in combination with a circumferentially discontinuous first coupling means adapted to operatively interact with a complementary second coupling means on the tire sidewall addition member for securing the sidewall addition member to the tire sidewall. Typically, a plurality of geometrically-shaped, detachable sidewall addition members may be utilized with each sidewall addition member having its own coupling means adapted to operatively interact with one of a plurality of independent and circumferentially discontinuous coupling means on the tire sidewall. Each coupling means may be independent, localized, and separate from the other coupling means, i.e., no one annular coupling means in the tire sidewall that is circumferentially continuous relative to the annular extent of the sidewall and no continuous coupling means on the addition member that may engage more than one coupling means on the tire sidewall.

The location on the tire sidewall of the various conventional addition members may be both a matter of choice and/or function of intended use. The addition members may take the form of a great variety of geometric shapes, colors, and textures. The addition members may be removably coupled with the tire sidewall with a mechanical coupling means, such as a recess or depression adjacent to a peripheral undercut for yieldingly receiving and retaining a peripheral portion of the addition member. The addition members may be provided with an indicium and a portion of the indicium may be of a color differing from the remainder of the addition member. The sizes, shapes, and thicknesses, as well as the material compositions and elasticities of the addition members, may also vary greatly depending on the intended use thereof.

The conventional addition members may provide distinctive styling, but also permit unique personalized identification. Tire branding information may be accomplished by the use of appropriate addition members. The conventional addition members may also be weighted to provide static and dynamic balancing features to the tire. It may also be possible to couple the addition members to the tire sidewall such that they disengage at a particular load and/or tire inflation pressure. Specialized coatings may further provide visual notification of possible tire damage or departure from normal operating conditions. If abnormal operating conditions do occur or there is damage to the addition members via scuffing, for example, the addition members may readily be replaced since they are detachably secured to the sidewall.

SUMMARY OF THE INVENTION

A medallion assembly for a pneumatic tire, in accordance with the present invention, includes a protruding portion, a fastener, and a medallion. The protruding portion is integrally formed with a sidewall of the tire and extends away from the sidewall of the tire. The protruding portion has an annular tapered outer surface. The fastener has an annular tapered inner surface and an annular outer surface. The annular tapered inner surface engages the annular tapered outer surface of the protruding portion. The medallion has an annular inner surface for engaging the annular outer surface of the fastener such that the medallion is secured to the fastener and both the medallion and the fastener are secured to the protruding portion of the sidewall of the tire.

In accordance with another aspect of the present invention, the annular tapered outer surface of the protruding portion has a diameter that increases as the protruding portion extends away from the sidewall of the tire.

In accordance with still another aspect of the present invention, the annular tapered inner surface of the fastener has a diameter that increases as the fastener extends away from the sidewall of the tire.

In accordance with yet another aspect of the present invention, the annular tapered outer surface of the protruding portion and the annular tapered inner surface of the fastener form an interference fit.

In accordance with still another aspect of the present invention, the annular outer surface of the fastener comprises a first tapered annular outer surface and a second tapered annular outer surface.

In accordance with yet another aspect of the present invention, a diameter of the first tapered annular outer surface increases as the fastener extends away from the sidewall of the tire and a diameter of the second tapered annular outer surface decreases as the fastener extends away from the sidewall of the tire.

In accordance with still another aspect of the present invention, the annular inner surface of the medallion comprises a first tapered annular inner surface and a second tapered annular inner surface.

In accordance with yet another aspect of the present invention, a diameter of the first tapered annular inner surface increases as the medallion extends away from the sidewall of the tire and a diameter of the second tapered annular inner surface decreases as the medallion extends away from the sidewall of the tire.

In accordance with still another aspect of the present invention, the annular outer surface of the fastener engages the annular inner surface of the medallion such that the medallion is secured against movement away from the sidewall of the tire.

In accordance with yet another aspect of the present invention, the sidewall of the includes a recess for receiving a portion of the medallion, the recess having a volume equal a volume of the protruding portion extending beyond the outermost surface of the sidewall of the tire.

A pneumatic tire in accordance with the present invention includes a tread portion and two sidewalls extending radially inward from the tread portion. At least one sidewall has at least one protruding portion extending axially away from the sidewall, at least one fastener attached to each protruding portion, and at least one medallion attached to each fastener. The protruding portion is integrally formed with the sidewall of the tire. The protruding portion has an annular tapered outer surface. The fastener has an annular tapered inner surface and an annular outer surface. The annular tapered inner surface engages the annular tapered outer surface of the protruding portion. The medallion has an annular inner surface for engaging the annular outer surface of the fastener such that the medallion is at least axially secured to the fastener and both the medallion and the fastener are at least axially secured to the protruding portion of the sidewall of the tire.

In accordance with still another aspect of the present invention, each sidewall has at least one protruding portion.

In accordance with yet another aspect of the present invention, the annular tapered outer surface of the protruding portion has a diameter that increases as the protruding portion extends away from the sidewall of the tire and the annular tapered inner surface of the fastener has a diameter that increases as the fastener extends away from the sidewall of the tire.

In accordance with still another aspect of the present invention, the annular tapered outer surface of the protruding portion and the annular tapered inner surface of the fastener form an interference fit.

In accordance with yet another aspect of the present invention, the annular outer surface of the fastener comprises a first tapered annular outer surface and a second tapered annular outer surface.

In accordance with still another aspect of the present invention, a diameter of the first tapered annular outer surface increases as the fastener extends away from the sidewall of the tire and a diameter of the second tapered annular outer surface decreases as the fastener extends away from the sidewall of the tire.

In accordance with yet another aspect of the present invention, the annular inner surface of the medallion comprises a first tapered annular inner surface and a second tapered annular inner surface.

In accordance with still another aspect of the present invention, a diameter of the first tapered annular inner surface increases as the medallion extends away from the sidewall of the tire and a diameter of the second tapered annular inner surface decreases as the medallion extends away from the sidewall of the tire.

In accordance with yet another aspect of the present invention, the annular outer surface of the fastener engages the annular inner surface of the medallion such that the medallion is secured against movement away from the sidewall of the tire.

In accordance with still another aspect of the present invention, the sidewall of the tire includes a recess for receiving a portion of the medallion, the recess having a volume equal a volume of the protruding portion extending beyond the outermost surface of the sidewall of the tire.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic isometric view of a conventional tire with sidewall lettering.

FIG. 2 is a schematic fragmentary view of a sidewall of a pneumatic tire in accordance with the present invention.

FIG. 3 is an example schematic section view of a portion of the sidewall of FIG. 2 taken along line 3-3.

FIG. 4 is another example schematic section view of a portion of the sidewall of FIG. 2 taken along line 3-3.

FIG. 5 is an exploded section view of the portion of the sidewall of FIG. 4.

FIG. 6 is a schematic exploded isometric view of the portion of the sidewall of FIG. 4.

FIG. 7 is a schematic partially assembled isometric view of the portion of the sidewall of FIG. 4.

FIG. 8 is a schematic completely assembled isometric view of the portion of the sidewall of FIG. 4.

DESCRIPTION OF EXAMPLE EMBODIMENTS OF THE INVENTION

FIG. 1 illustrates a conventional tire 1 having various indicia 2 carved out molded directly into the sidewall 3 of the tire. As stated above, this type of marking eliminates the ability of changing the indicia 3 without changing the tire 1 itself.

FIG. 2 illustrates a fragmentary view of a sidewall 12 of a pneumatic tire 10. The tire 10 has several variations of medallion assemblies 14, 16, 18, 20 and 22 in an installed condition in accordance with the present invention. “Sidewall”, for the purpose of this example tire 10, is the area of the tire extending from a shoulder 8 of the tire tread 6 to a bead 4 of the tire or rim flange area of the wheel upon which the example tire is mounted. Further, it is contemplated that medallions in accordance with the present invention may also be utilized on one or both sidewalls 12 of a tire, such as the example tire 10.

A section taken along line 3-3 in FIG. 2 is shown in FIG. 3 illustrating one example of a medallion assembly 14 in accordance with the present invention. The medallion assembly 14 includes a circular medallion 21 received and retained by an intermediate fastener 31 and a protruding portion 41 integral to the tire sidewall 12 and extending axially away from the tire sidewall. The fastener 31 includes a tapered, generally cylindrical opening 33 corresponding to a tapered, generally cylindrical outer surface 43 of the protruding portion 41 of the tire sidewall 12. The example protruding portion 41 of FIG. 3 may have a proximal diameter B of 0.30 inches, a distal diameter A of 0.40 inches, extension dimension D of 0.15 inches, and a recess C for the medallion 21 and the fastener 31 of 0.05 inches.

Another section taken along line 3-3 in FIG. 2 is shown in FIG. 4 illustrating another example of a similar medallion assembly 14′ in accordance with the present invention. The medallion assembly 14′ may also include a circular medallion 21′ received and retained by an intermediate fastener 31′ and a protruding portion 41′ integral to the tire sidewall 12. The fastener 31′ includes a tapered, generally cylindrical opening 33′ corresponding to a tapered, generally cylindrical outer surface 43′ of the protruding portion 41′ of the tire sidewall 12. This other example protruding portion 41′ of FIG. 4 may have a proximal diameter B′ of 0.20 inches, a distal diameter A′ of 0.30 inches, an extension dimension D′ of 0.15 inches, and a recess C′ for the medallion 21′ and the fastener 31′ of 0.05 inches.

As seen in FIG. 2, medallions in accordance with the present invention may be circular 14, 14′, oval 16, square 18, egg shaped 20, trapezoidal 22, or any other suitable shape without changing the circular shape and structure of the fastener 31 or protruding portion 41. However, the opening of the fastener and outer surface of the protruding portion may also be non-circular (not shown) as long as the inner surface of the opening of the fastener mates correspondingly with the outer surface of the protruding portion so that the taper of the protruding portion secures the medallion assembly to the sidewall 12 of the tire 10, as described below. Such a non-circular configuration will also maintain the orientation of the medallion relative to the sidewall 12 during operational rotation of the tire 10. Further, a single medallion may be configured to attach to two or more protruding portions, thereby also securing the medallion against relative movement versus the sidewall.

As seen in the exploded view of FIG. 5, the sidewall 12 of the tire 10 may have a recess 45′ with a volume equaling the volume of the protruding portion 41′ that extends beyond the outermost surface 13 of the sidewall. This equalization of volumes eliminates any need to recalculate and/or adjust rubber volumes during manufacture of the tire 10. Further, the tapered opening 33′ of the fastener 31′ has an annular inner surface 37′ for engaging a corresponding annular outer surface 43′ of the protruding portion 41′. As stated above, when engaged, these two surfaces 37′, 43′ secure the medallion assembly 14′ against movement away from the sidewall 12 of the tire 10.

The fastener 31′ has a first tapered annular outer surface 35′ for engaging a corresponding first tapered annular inner surface 23′ of the medallion 21′. When engaged, the tapers of these two surfaces 23′, 35′ secure the medallion 21′ to the fastener 31′, similar to the surfaces 37′, 43′ described above. The fastener 31′ has a second tapered annular outer surface 36′ for engaging a corresponding second tapered annular inner surface 25′ of the medallion 21′. These surfaces 25′, 36′ are tapered oppositely from the surfaces 23′, 35′ and facilitate placement of the medallion 21′ over the fastener 31′ during installation of the medallion assembly 14′, as described below.

As seen in FIG. 6, the fastener 31′ further has a slit 38′ extending radially outward from the circular opening 33′ to the outer periphery of the fastener. When the fastener 31′ is constructed of a resilient material, such as an elastomer, the shape of the fastener may be altered temporarily to bend the fastener around the protruding portion 41′ so that the protruding portion extends through the opening 33′ and the fastener is temporarily secured to the tire 10, as seen in FIG. 7. The fastener 31′ may also have a hinge 39′ for facilitating the placement of the fastener over the protruding portion 41′. A fastener 31′ with a hinge 39′ diametrically opposed to the slit 38′, as shown in FIGS. 6 & 7, may be constructed of a more brittle, less resilient material than a fastener without the hinge.

When the fastener 31′ is placed over the protruding portion 41′ and the medallion 21′ is placed over the outer periphery of the fastener, the medallion and fastener become fixedly secured to the protruding portion and the sidewall 12 of the tire 10 (FIG. 8). The resilient nature of the fastener 31′ and medallion 21′ may allow for an interference fit between the outer surfaces 35′, 36′ of the fastener and the inner surfaces 23′, 25′ of the medallion 21′. The engagement of the outer surfaces 35′, 36′ and the inner surfaces 23′, 25′ may secure the medallion 21′ and fastener 31′ to the sidewall 12 of the tire 10 by preventing the fastener 31′ from moving radially outward and out of engagement with the protruding portion 41′ of the sidewall 12.

Alternatively, instead of the first tapered surfaces 23′, 35′, the medallion 21′ may have an annular lip (not shown) extending radially inward from the inner surface of the medallion for engaging a corresponding annular retention ring (not shown) extending radially outward from the outer surface of the fastener 31′. The engagement of the lip and retention ring may also secure the medallion 21′ and fastener 31′ to the sidewall 12 of the tire 10 by preventing the fastener 31′ from moving radially outward and out of engagement with the protruding portion 41′ of the sidewall 12.

A medallion assembly in accordance with the present invention, such as example assemblies 14, 14′, 16, 18, 20, and 22, provides a simple, low cost, reliable means for attaching a decorative of functional object to the sidewall of a tire. The medallion assembly further maintains rubber volume and provides secure mechanical attachment against high speed operation, curb scuffs, etc. The medallion assembly additionally provides flexibility for adding any image, color, lighting, etc. to the sidewall of a tire. If the medallion assembly is damaged, it is also easily replaced without even removing the tire from the vehicle.

As stated above, it should be clear at this time that the medallions of this invention may include a variety of geometric shapes including, but not limited to, circles, ellipses, squares, triangles, and diamonds, as well as any desired combinations thereof. If a medallion is circular, an anti-rotation device may be required if, for example, the medallion is provided with a decorative or indicia bearing display surface that is direction sensitive. Other shapes may be inherently non-rotatable if snugly fitted into a corresponding coupling means of the type previously described.

Further, medallion assemblies in accordance with the present invention may be placed anywhere along the radial extent of a tire sidewall and may be used in pluralities around the annular extent of the sidewall, regardless of the type of fasteners, and may be at elevations less than, the same as, or greater than the surrounding surface. The medallions may be of the same or of a color differing from the sidewall and/or the remainder of the tire and may also be designed to provide distinctive, unique, and customized styling. For example, the medallions may be coded or printed to provide manufacturer or brand name, user or personalized identification, etc. If desired, indicia, such as in the form of letters or numbers, of various colors and color combinations, may be uniquely assembled to fit the desires of a particular end user. The medallions may be reflective, iridescent, or phosphorescent coated in order to provide reflective safety features. Both the inner and outer exposed sidewall surfaces of a tire may be provided with medallions and the medallions may be selectively weighted to provide static and dynamic balancing features to the tire. This is typically accomplished on the inner exposed sidewall surface.

From the foregoing description, it is believed that those familiar with the art will readily recognize and appreciate the novel concepts and features of the present invention. Obviously, while the invention has been described in relation to but a limited number of examples, numerous further variations, changes, substitutions, and equivalents will present themselves to persons skilled in the art and may be made without necessarily departing from the scope and principles of the invention, with the latter being determined solely by reference to the claims appended hereto. 

1. A pneumatic tire comprising: a tread portion; and two sidewalls extending radially inward from the tread portion, at least one sidewall having at least one protruding portion extending axially away from the sidewall, at least one fastener attached to each protruding portion, and at least one medallion attached to each fastener, the protruding portion being integrally formed with the sidewall of the tire, the protruding portion having an annular tapered outer surface, the fastener having an annular tapered inner surface and an annular outer surface, the annular tapered inner surface engaging the annular tapered outer surface of the protruding portion, the medallion having an annular inner surface for engaging the annular outer surface of the fastener such that the medallion is at least axially secured to the fastener and both the medallion and the fastener are at least axially secured to the protruding portion of the sidewall of the tire, the annular tapered outer surface of the protruding portion having a diameter that increases as the protruding portion extends away from the sidewall of the tire and the annular tapered inner surface of the fastener having a diameter that increases as the fastener extends away from the sidewall of the tire, the annular tapered outer surface of the protruding portion and the annular tapered inner surface of the fastener forming an interference fit, the annular outer surface of the fastener comprising a first tapered annular outer surface and a second tapered annular outer surface, a diameter of the first tapered annular outer surface increasing as the fastener extends away from the sidewall of the tire and a diameter of the second tapered annular outer surface decreasing as the fastener extends away from the sidewall of the tire.
 2. The pneumatic tire as set forth in claim 1 wherein each sidewall has at least one protruding portion.
 3. The pneumatic tire as set forth in claim 1 wherein the annular inner surface of the medallion comprises a first tapered annular inner surface and a second tapered annular inner surface.
 4. The pneumatic tire as set forth in claim 3 wherein a diameter of the first tapered annular inner surface increases as the medallion extends away from the sidewall of the tire and a diameter of the second tapered annular inner surface decreases as the medallion extends away from the sidewall of the tire.
 5. The pneumatic tire as set forth in claim 4 wherein the annular outer surface of the fastener engages the annular inner surface of the medallion such that the medallion is secured against movement away from the sidewall of the tire.
 6. The pneumatic tire as set forth in claim 5 wherein the sidewall of the includes a recess for receiving a portion of the medallion, the recess having a volume equal a volume of the protruding portion extending beyond the outermost surface of the sidewall of the tire. 